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Light mag. 4.3 earthquake - North Pacific Ocean, Japan, on Jun 04, 2021 14:41:18.79

Light magnitude 4.3 earthquake at 139 km depth

4 Jun 05:48 UTC: First to report: NIED after 7 minutes.
4 Jun 05:50: Hypocenter depth recalculated from 139.2 to 139.4 km (from 86 to 87 mi). Epicenter location corrected by 2.6 km (1.6 mi) towards NE.

Earthquake details

Date & time	Jun 4, 2021 05:41:18 UTC
Local time at epicenter	Jun 04, 2021 14:41:18.79
Status	Confirmed
Magnitude	4.3
Depth	139.4 km
Epicenter latitude / longitude	32.162°N / 140.027°E (North Pacific Ocean, Japan)
Antipode	32.162°S / 39.973°W
Shaking intensity	Very weak shaking
Felt	0 reports
Primary data source	NIED (National Research Institute for Earth Science and Disaster Resilience)
Nearest volcano	Myojin Knoll (18 km / 11 mi)
Nearby towns and cities	297 km (185 mi) SSE of Shimoda (pop: 26,700) \| Show on map \| Quakes nearby 319 km (198 mi) SSE of Ōyama (Omaezaki) (pop: 21,700) \| Show on map \| Quakes nearby 378 km (235 mi) SE of Tahara (pop: 38,200) \| Show on map \| Quakes nearby 394 km (245 mi) S of Tokyo (pop: 8,336,600) \| Show on map \| Quakes nearby 108 km (67 mi) SSE of Hachijojima Island (pop: 7,520) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Light Rain 23.5°C (74 F), humidity: 95%, wind: 10 m/s (19 kts) from S
Estimated seismic energy released	1.8 x 10¹¹ joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) \| about seismic energy

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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.

Mag.	Depth	Location	Source
4.3	139 km	Japan: E OFF HACHIJOJIMA ISLAND	NIED

Most recent quakes Top 20 past 24 hrs Quakes in Japan

Seismograms

Seismic station: Hachijojima Island (JHJ2/JP network) | Distance from quake: 108 km / 67 mi | Show on map | Station Info

Seismic station Hachijojima Island: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Hachijojima Island: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Hachijojima Island: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Shizuoka Sagara (JSG/JP network) | Distance from quake: 328 km / 204 mi | Show on map | Station Info

Seismic station Shizuoka Sagara: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Shizuoka Sagara: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Shizuoka Sagara: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Inuyama, Japan (INU/PS network) | Distance from quake: 450 km / 279 mi | Show on map | Station Info

Seismic station Inuyama, Japan: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Inuyama, Japan: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Inuyama, Japan: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Sado (JSD/JP network) | Distance from quake: 673 km / 418 mi | Show on map | Station Info

Seismic station Sado: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Sado: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Sado: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Minamidaitojima Island (JMZ/JP network) | Distance from quake: 1108 km / 689 mi | Show on map | Station Info

Seismic station Minamidaitojima Island: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Minamidaitojima Island: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Minamidaitojima Island: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

There are no user reports for this quake.

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